/Engine/Plugins/Developer/Concert/ConcertSync/ConcertSyncClient/Source/ConcertSyncClient/Public/IConcertClientPresenceMode.h
1) Add a presence mode class inherited fromIConcertClientBasePresenceModeto send events and cache state, if needed, for the current client. 2) Add a presence actor class to handle events and display the avatar for remote clients.
class IConcertClientBasePresenceMode